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Authors
Song, Uhram http://orcid.org/0000-0001-9182-0159
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Funding
Funding for this research was provided by:
scientific promotion program funded by Jeju National University. (This research was supported by the 2017 scientific promotion program funded by Jeju National University.)
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Article History
Received: 7 October 2018
Accepted: 6 November 2018
First Online: 26 November 2018
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